Philips 32PFL3008D/78 - Page 45

Circuit Diagrams and PWB Layouts
EN 45TPS10.1L LA 10.
2013-Apr-26
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10-2-5 LED Current Balance
19430_508_130114.eps
130114
LED Current Balance
A05 A05
2013-01-02
A
715G5792
LED Current Balance
C8504 0.47UF 50V
C8505 0.47UF 50V
IC8502
PF7700A
DIM
1
EN
2
VCC
3
LED
4
GND
5
ISET
6
GM
7
COMP
8
IC8503
PF7700A
DIM
1
EN
2
VCC
3
LED
4
GND
5
ISET
6
GM
7
COMP
8
IC8504
PF7700A
DIM
1
EN
2
VCC
3
LED
4
GND
5
ISET
6
GM
7
COMP
8
IC8505
PF7700A
DIM
1
EN
2
VCC
3
LED
4
GND
5
ISET
6
GM
7
COMP
8
IC8506
PF7700A
DIM
1
EN
2
VCC
3
LED
4
GND
5
ISET
6
GM
7
COMP
8
R8523 NC R8522 NC
R8521 NC
R8525
NC
R8524 NC
+12V
+12V +12V
C8517
1N 50V
R8511
10K 1/8W 1%
R8512
NC
On/Off
CN8501 CONN
1 2 3 4 5 6 7 8 9
10 11 12
C8518
1N 50V
DIM_IN
DIM
EN
R8513
10K 1/8W 1%
DIM_IN
LED-COMP
DIM_IN LED-COMP
LED-COMP
DIM_IN
EN EN
EN
LED-COMP
LED-1
LED-2 LED-1
IC8501
PF7700A
DIM
1
EN
2
VCC
3
LED
4
GND
5
ISET
6
GM
7
COMP
8
LED-5 LED-2
LED-6 LED-3 LED-4 LED-5
+12V
LED-COMP
EN
C8516 100N 50V
C8503
0.47UF 50V
R8506 10K 1/8W 1%
EN
C8506 0.47UF 50V
LED-6
C8513 100N 50V
LED-3
LED-COMP
DIM_IN
R8501 10K 1/8W 1%
R8503 10K 1/8W 1%
DIM_IN
+12V
R8502 10K 1/8W 1%
VLED
R8504 10K 1/8W 1%
R8505 10K 1/8W 1%
+
C8510 22UF 50V
C8501 0.47UF 50V
DIM_IN
EN
LED-4
+12V
C8502 0.47UF 50V
VLED
C8514 100N 50V
C8515 100N 50V C8512 100N 50V
C8511 100N 50V